| Patents Granted on 1938-05-?? |
Patents 1 -
15
of 31
      |
| Number | Date | Patentee | Title | Type |
| D109,498 | May 03, 1938 | E.M. Pfauser | Jack | |
| D109,499 | May 03, 1938 | E.M. Pfauser | Jack | |
| 2,116,122 | May 03, 1938 | W.F. Ocenasek | Machine tool | |
| 2,116,123 | May 03, 1938 | W.F. Ocenasek | Jigsaw | scrollsaws |
| 2,116,262 | May 03, 1938 | B. Granberg, J.B. Sinderson | Attachment for machine tools | |
| 2,116,272 | May 03, 1938 | A.W. Mall | Abrasive wheel | |
| 2,116,491 | May 03, 1938 | A.W. Mall | Angle grinding spindle | |
| D109,628 | May 10, 1938 | J. Tate | Design for a drill press guard | drilling and boring |
| 2,116,498 | May 10, 1938 | E.A. Hall | Grinding Machine | valve grinding tools |
| 2,116,541 | May 10, 1938 | L. Roush, C. Riedel | Method for aerating liquids | |
| 2,116,708 | May 10, 1938 | R.A. Niekamp | Apparatus for compacting concrete | |
| 2,116,764 | May 10, 1938 | D.A. Meeker | Food handling apparatus | |
| FR-828,200 | May 11, 1938 | O.E. Robbins | Magnetic Sine Table | angle bars and angle plates |
| 2,117,300 | May 17, 1938 | J. Corser | Rock crushing machine | ore processing apparatus |
| 2,117,529 | May 17, 1938 | D.D. Wile | Temperature Control Apparatus | temperature controls |
